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On the Geometry of Some Special Projective Varieties Vital Source e-bog
Francesco Russo
(2016)
Springer Nature
725,00 kr.
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On the Geometry of Some Special Projective Varieties
Francesco Russo
(2016)
Sprog: Engelsk
Springer International Publishing AG
899,00 kr.
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Detaljer om varen
- Vital Source searchable e-book (Fixed pages)
- Udgiver: Springer Nature (Januar 2016)
- ISBN: 9783319267654
Providing an introduction to both classical and modern techniques in projective algebraic geometry, this monograph treats the geometrical properties of varieties embedded in projective spaces, their secant and tangent lines, the behavior of tangent linear spaces, the algebro-geometric and topological obstructions to their embedding into smaller projective spaces, and the classification of extremal cases. It also provides a solution of Hartshorne’s Conjecture on Complete Intersections for the class of quadratic manifolds and new short proofs of previously known results, using the modern tools of Mori Theory and of rationally connected manifolds.The new approach to some of the problems considered can be resumed in the principle that, instead of studying a special embedded manifold uniruled by lines, one passes to analyze the original geometrical property on the manifold of lines passing through a general point and contained in the manifold. Once this embedded manifold, usually of lower codimension, is classified, one tries to reconstruct the original manifold, following a principle appearing also in other areas of geometry such as projective differential geometry or complex geometry.
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Bookshelf online: 5 år fra købsdato.
Bookshelf appen: ubegrænset dage fra købsdato.
Udgiveren oplyser at følgende begrænsninger er gældende for dette produkt:
Print: 2 sider kan printes ad gangen
Copy: højest 2 sider i alt kan kopieres (copy/paste)
Detaljer om varen
- Paperback
- Udgiver: Springer International Publishing AG (Februar 2016)
- ISBN: 9783319267647
Providing an introduction to both classical and modern techniques in projective algebraic geometry, this monograph treats the geometrical properties of varieties embedded in projective spaces, their secant and tangent lines, the behavior of tangent linear spaces, the algebro-geometric and topological obstructions to their embedding into smaller projective spaces, and the classification of extremal cases. It also provides a solution of Hartshorne's Conjecture on Complete Intersections for the class of quadratic manifolds and new short proofs of previously known results, using the modern tools of Mori Theory and of rationally connected manifolds.
The new approach to some of the problems considered can be resumed in the principle that, instead of studying a special embedded manifold uniruled by lines, one passes to analyze the original geometrical property on the manifold of lines passing through a general point and contained in the manifold. Once this embedded manifold, usually of lower codimension, is classified, one tries to reconstruct the original manifold, following a principle appearing also in other areas of geometry such as projective differential geometry or complex geometry.Preface.-Introduction.-
1.Tangent cones, tangent spaces, tangent stars; secant, tangent and tangent star varieties to an algebraic variety.-
2.Basics of Deformation Theory of Rational Curves on Projective Varieties.-
3.Fulton-Hansen Connectedness Theorem, Scorza Lemma and their applications to projective geometry.-
4.Local quadratic entry locus manifolds and conic connected manifolds.-
5.Hartshorne Conjectures and Severi varieties.-
6.Varieties n-covered by curves of a fixed degree and the XJC.-
7. Hypersurfaces with vanishing hessian.-Bibliography
1.Tangent cones, tangent spaces, tangent stars; secant, tangent and tangent star varieties to an algebraic variety.-
2.Basics of Deformation Theory of Rational Curves on Projective Varieties.-
3.Fulton-Hansen Connectedness Theorem, Scorza Lemma and their applications to projective geometry.-
4.Local quadratic entry locus manifolds and conic connected manifolds.-
5.Hartshorne Conjectures and Severi varieties.-
6.Varieties n-covered by curves of a fixed degree and the XJC.-
7. Hypersurfaces with vanishing hessian.-Bibliography
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